Sex.
My girlfriend and I had sex multiple times during one night and we had a huge “round” of foreplay before and after.. Anyway, she likes her clitorus to be stimulated hard and when I say hard, I mean real hard.. So we got into a cowgirl position and she grinds her pussy along the topside of my penis (not penetration).. I don’t feel any pain.. Just a slight sensation.. But one thing I noticed in the morning was that I had just a few red spots around the penis (upper shaft region and head). Funnily enough it felt like a jelq session.. Is that a bad indication on my penis? But the other thing I experienced was minor pain in my penis but that was because we got nasty a lot :)
Whats your guys opinions?