Our Family Trio

Within a few hours of meeting my sons new girlfriend, we were on my bed tonguing each others pussies, while he watched.
But it wasn't our first sexual encounter. We'd first had sex at a party almost a year earlier. And she'd shown that night just how much she enjoyed pussy, as well as cock.
You might think I'm a bad person for seducing my sons girlfriend, however it wasn't the fitst time he'd watched his mamma having her pussy and large clitoris licked and sucked on.
Indeed my son himself has often pleasured his mamma with his mouth and tongue. And frequently (most afternoons) to this day, fucks my asshole when he's feeling horny and wants mamma to ride his dick.
So with his new girlfriend letting him know we'd met previously, he had her explain every detail.
I knew by the time he'd heard her tell him I'd sat on her face as she devoured my clit, he wanted to see us naked together.
You see, as much as you might think it's me that drives our inc******s relationship, it's actually my son, who has a enormous libido. Mine is healthy too, but my son needs and wants sex every day, most days two to three times a day.
In a sixty nine with my sons now fiancée, I was under her as we slurped away making each other orgasm over and over. And just as I'd had yet another climax, my son got onto the bed and slid his erection into his girlfriends ass.
From what I now know, it was their first anal fuck, yet she was so into our lesbian sex, she took his all of my sons hard on right to the hilt, as I looked up watching him fuck her.
They're now engaged and are getting married in September. My sons fiancée now lives with us, and all I can say is, there's always a lustful love going on in our home.