Being Sexually Horny Wanting To Swing With Dear Friend's Hubby

I've been married for sometime to someone who enjoys having sex with me even though I've been a bbw most of my life. As I gotten older my tummy gotten bigger so did my tits. My husband wanted to swing and suggested we swap with our dear close friends Betty and Mike. Betty was was not as big as me but my husband was interested in her mega size breast. Mike wanted to swing also but couldn't convince Betty into it.
They was over our place celebrating the holiday with all of us sipping wine. I became horny and whispered to Mike while carefully feeling his privates , " Let's go upstairs ! " Mike groped my ass squeezing the big cheeks as we walked up the steps. Once inside the bedroom I wrapped a hand around him pressing my tits into him and with the other hand undid his pants kissing him wildly. He slipped his hand in my bra played with my nipples while I exposed my big areolas.
We undressed each somewhat groping kissing each other somewhat. I pushed his head down between my legs and held it. He knew I wanted to be eaten. Betty and my husband barged in catching us in the sex act. My husband blurted out , " Let's have an orgy Betty, I always wanted to tit fuck you ! " My husband exposed her mega tits slapping them with his cock as I held and squeezed those breasts while as our husbands watched me.
Our close friendship became stronger having sexual relationship with one another to this day.