One night I was hanging out with my friends Erin and Samantha (names changed). We were all drinking and smoking weed. Erin went to bed early but Samantha and I stayed up for a bit. Samantha noticed that I was visibly arroused and wanted to watch me masturbate which I did, then she joined in, then we did each other. This progressed to doing just about everything else. She asked me to have sex with her, but we couldn't because I was too big.

I started feeling guilty at this point so we stopped and I sent Samantha to bed while I slept on the couch. However, twice more in the middle of the night, she got up and dry humped me til she orgasmed before going back to bed.

Here's the bomb...

Samantha and Erin are a lesbian couple, and my best friends.