[MFM] My small friend’s unplanned cuckolding and her first threesome [cuck] [size]

A grad school friend of mine, Eric, started coming to the gym with me, a few months back. He’s a bit shorter, less in shape, Chinese. One night we decided to check out the pool, then when we were showering afterwards, I noticed he kept his swimsuit on in the showers (even though I took mine off). I’m pretty well hung – 8″ when hard, and about 6″ soft – and his staring at me when we were showering was uncomfortably obvious.

We became better friends, and I ended up meeting his girlfriend, Sara, and hanging out with them a few times. Sara is super cute – a tiny, petite girl – and way out of Eric’s league. How he landed her, I have no idea.

Eric and I got in the habit of swimming a couple night a week. One night as we were rinsing off after a swim, he started asking why I didn’t have a girlfriend. I told him the truth – that I was just having a hard time finding someone – but he said something like, “Yeah, they probably run away scared after you show them that monster”, pointing to my cock. I said, “Well, you’ve got a girlfriend – I’m guessing whatever you’re hiding under your swimsuit isn’t exactly scaring the girls away.” That was meaner than I meant – I was just trying to tease him – but he blushed and said, “I’m not hiding anything…” (although he seemed apprehensive), and he pulled his swim trunks down.