My best friend's sister and I have been hooking up for yrs behind his back.

(No Regrets)

I said it. I confessed. We've been fucking each other and engaging in most, if not ALL our fetishes for the past 2yrs or so without telling him or anyone. I'm 28(M), she's 19(F), and our families are close friends. I've held her as a baby when I was a kid, I've taught her how to ride a bike and skate. I've also taken her to get her driver's license and tutored her in Algebra since she was a younger teenager.

She expressed her crush on me when she was 14yo and that escalated into full-on sex just before she turned 18. It's a very mutual relationship and she's objectively grown into quite a sexy, busty little vixen who I could almost getaway with calling my cousin in public (Bc of our families' close knit relationship).

Part of me feels bad for engaging in it. She's after all almost 10yrs younger AND she's my best friend's little sister. If he found out, he'd no doubt probably try to kill me (AND her). But she insists on having a relationship and insists that she loves me. I just love her sex drive and we have amazing sex almost every week. She's objectively a smart, hot, cute nerdy college girl who I obviously don't want to marry down the road. She's too mentally/emotionally young for me. I'm pretty sure we'd be banished from our households if we did so anyways. Its a 100% no-go for public couple in my book.

Just needed to share that with the world...