I [38] got fucked by my FWB's [52] teenage son [19]

All parties 18+. This happened about 3 years ago months ago. Sharing this here as it's incest adjacent.

I am in an open relationship & have a longstanding FWB relationship with a Dom top daddy, my usual type. We've fucked regularly about 4 years now and have settled into a very comfortable routine where I sometimes stay over.

He has a son living with him. Evidently he and his son are very open to each other about their sex lives. He likes boasting about what a good piece of ass I am. We are very vocal when we fuck - from the snarky comments or two over breakfast from his son I gather that he's able to hear everything.

One morning after being bred twice by my FWB, I had a day off & decided to sleep in a bit after he's gone to work.

I woke up to someone rimming me with my legs around my shoulders. I had a brief fight or flight response before I realized that it's his son (for the sake of this story let's call the son A). I moaned but got him to stop and talk about what's going on.

Until this point A has shown no signs of being into men other than commenting on my ass & my "Asian genes" and how cute and little I am even though I'm almost twice his age - he is built like his dad and towers over me at 6'3" while I'm toned but skinny and barely came up to his chin at 5'4" . I asked wtf is going on, not that I didn't enjoy the rimming.

A smirked, "I've been curious for a while and you have a great ass, even for an older guy."

Me, "But wouldn't it be weird to fuck the guy your dad is fucking?"

A, "Well he brags to me all the time about your pussy and what a slut you are, so I'm sure you won't mind."

Me, "I don't really have sex with younger guys and you're only 19. And besides, did you know that's your dad's cum in my ass that you're tasting?"

A, "It's just cum. If you let just about anyone fuck you why not let me have a go?"

Me, "Cause it's weird!"

I got up to use the toilet and remove myself from the situation. When I tried to get dressed, A swatted my clothes away, carried me over his shoulders and dropped me back on to the bed on my back, and put my legs into a spread-eagle position and I knew he was intent on fucking me.

Me, "Come on, try Grindr?"

A, "But I have you right here."

I felt his cock at my entrance and he started putting pressure to enter me. My hole was wet and lubed with saliva and his dad's cum so I knew he would have no difficulty entering me and I don't stand a chance of fighting him off. "Please don't", I pleaded weakly before my mouth hung opened in a silent scream as he penetrated me.

I moaned, "I can't believe this is happening, you weirdo".

He laughed, "You're my dad's sex toy, you let any man fuck you, you should be used to this."

He bottomed out in me quite quickly as I was quite loose, and started pumping away.

I should have told him to show me some respect since I could almost be his dad, but the situation got me horny again and I moaned.

A spat on me, "See, you enjoy it. This is some good ass, much tighter than fucking a girl."

He started fucking me harder like a typical young guy that just wants to get off. I started whimpering and moaning like a bitch in heat.

He called me a "good boy" and made me call him "daddy." I ignored the little voice in my head that told me that I've become this teenager's boy, and decided to enjoy the fuck for what it was.

He came inside me after about a few minutes but it felt like he was fucking me for ages.

But instead of letting me up and getting on his way, he stayed hard inside me.

A, "Too good not to go again."

Soon he was pumping away again. Post nut clarity was kicking in and I tried to tell him I was busy, but ended up squealing and moaning like the whore I was as he slam fucked me.

This time he fucked me for about 15-20 mins, before pulling out to cum on my belly and face.

I was exhausted and delirious, must have been a sight covered in spit, cum.

He took me again in the shower and this time I didn't bother resisting. "What, again?" "Yeah why not?" Teenagers! Between the fucks from his dad and A, my hole was loose and gaping and I walked funny the next day or two.

I fessed up to his dad about what happened but turns out that A has beat me to it. Instead of being pissed off like I feared he would be, he found it hot that his son had made me one of his conquests.

Since then A would fuck me whenever he wants, including visiting me at my place, until he got a gf. I still prefer daddies but he gave me a good time especially with seemingly no need for recovery after cumming.

More in my profile including the time both A and his dad tag teamed me, and A’s friends from school running a train on me.