This is the advert we normally put forward to attract the right lodger...

Large double room, fully furnished, en suite bathroom, with sky multi room tv.
All meals, bills, laundry and fresh linen twice weekly included.
£££&Acir c;£Â£Â £ the amount of money per week.
Added bonus to the right person, which must be taken up.
Please contact Phil (Me) on ...........

Since we've been taking in a Lodger, which is four years now. We've had six different young men come to live with us. I vet the applicants and make sure they're suitable for our life style and Helen, my wife's needs.
The added bonus is attending to Helen's needs whenever she's horny. Which basically of late, is pretty much all the bloody time.
I married Helen when I was thirty five. She was twenty six at the time, and at the time I could keep up with her insatiable sexual demands. But as I got a little older, I found it increasingly more difficult to match her libido. We introduced sex toys as a way of helping me give her the kind of and the amount of sex she wanted. But it soon became apparent Helen wanted the real thing. Don't get me wrong I was then still having sex with her daily, but Helen's sexual desires had her wanting sex two to three times a day.
Our first dip if you like, into including other men happened by pure chance. We were out and I caught a guy eyeing Helen up. Even now with Helen being thirty four, she's an incredibly attractive slim and horny looking woman. But only a year or so after we got together and seeing the guy obviously attracted to her, I found myself thinking of him fucking her.
Letting Helen know what my thoughts were, she instantly got up, walked over to the young man and I saw her cup his cock bulge in his trousers. They walked back over to where I was sat and Helen introduced me to the young man. She then told me to say what I'd just said to her. I repeated myself and half an hour later, I was watching my then fiancee take a young guys cock down her throat.
He stayed overnight and I swear by the time he walked out of the flat we had then, he was absolutely knackered. I'd joined in and it was an amazing night of sex. Over the next few months, we invited another four guys to join us, and one of them became a regular fuck partner.
After our marriage, Helen's devotion to me was pure. She wouldn't have sex with anyone else. But money got tight just over four years ago, just around the time I was struggling to keep up with her sexual demands. I suggested we take in a lodger. Helen seemed really interested, and I caught her watching porn one evening depicting a lady landlord fucking her lodger. We fucked that night and afterwards I asked her if she was getting that urge to have sex with other men again. At the time I wish I hadn't asked. By the time she'd finished fucking me that night I was totally exhausted.
The following morning (It was a Sunday) she had me lick her out for over an hour, before she asked me to advertise for a lodger. We spoke in the kitchen about what we should offer to attract the right applicant, then I got to work on one of our spare rooms. It only took a couple weeks to transform the room, as most of it was already there.
I interviewed/showed round four young men that first time. Two of them straight away said no, as they apparently were gay (Who knew) One of them Helen didn't like, so after telling the young man what the bonus was, we shook on Liam being our first lodger.
On his second night at our home, Helen walked into his room naked and I listened as they fucked for hours. The second time they had sex, I was in the kitchen making a cup of tea. I heard Helen saying "yes that's it lick me there". I walked back into the front room to find them both semi naked and Liam had his head buried into Helen's pussy. Liam seemed scared at first once he saw me, but I just sat down and told him to fuck her. It was a little strange having the football on, and watching my wife being fucked by a twenty year old lad on our couch. When Liam had dumped his load inside my wife's pussy, I let my shorts fall to the floor, moved him aside, then slid my cock straight into her well lubed up fuck hole. It had been a while since I fucked Helen that hard, and it was so good to see and feel her orgasm on my cock.
Liam stayed for over a year, and in that time I guess they fucked at least once a day. Sometimes with me present, but mostly when I was out at work or at the gym.
Two, three (He was a big lad, nine and half inch cock), four (Only stayed a few months. I think Helen wore him out) and five all came literally and went. And now we have an older young guy called Adam (He's twenty eight) Helen and he get along really well, and so do we.
They bonded very quickly and I've found him to be the most to my taste. That's because when they first fucked, Adam involved me directly. I'm not sure if he got the wrong impression, but it didn't matter as I went along with his and then Helen's suggestions. With Adam fucking Helen doggy style on our bed, he asked me if I'd lick his arsehole. I was already naked and had had Helen suck us both before he began to fuck her. Helen looked round and said "Well go on Phil, lick Adam's arse". So with him banging my wife, I got up behind Adam and started to tongue his arsehole. He went fuck crazy and Helen got the benefit of what I was doing to Adam.
Switching positions, he got Helen to ride him facing away from him. Helen saw this as an opportunity and had me get up close. Riding Adam's cock for a while, she lifted off then told me to suck his pussy coated cock. Adam didn't say anything, but moved Helen a little so he could see. Gripping my hair, my wife forced my head down and I sucked in my first cock. Sucking on Adam dick for a couple of minutes, Helen lifted my head up, smiled at me and impaled herself back onto Adam's cock. And so it went on for some time. Helen's pussy, my mouth before they switched again. Lay on her back with her legs over Adam's shoulders, he pounded into my wife and had me licking his arsehole again. After a few minutes more Helen orgasmed quickly, followed closely by Adam. When he pulled out and moved over, Helen told me to suck his dick clean. I did as she asked and had Adam kind of fucking my mouth. It was Adam who told me to go down on my wife, and I obediently gave him and her what they wanted.
And so it has been the sexual way of things since then. I'm not always involved when they fuck, but I am more often than I have been with any other of the lodgers. Helen and I are as you might of guessed really close. But I know if I cannot keep her happy sexually, she'll find someone who can. There is one other added benefit to my bisexual involvement with Adam and Helen. I've begun to suck Adam off when Helen's sometimes not around. She's become increasingly busy at work, and where as they used to fuck nearly every day, they/we have sex possibly four days out of seven.
Adam's just as horny as Helen used to be, so some days when he's feeling randy, he and I have oral sex. I always suck him to completion and I've realised I'm a really good cock sucker. And only the last week or so, he's been asking me if I'd let him fuck me. I've so far refused as I don't want to take his lust for my wife away. But if the right occasion falls into place, who knows, Adam could be the first to fuck me anally.