Another cock trib over a senders step sister (posted with permission). This one was easy for me...just look at her tits! Send me your girls whoever she is to have your own cock trib done!
My son has several of these on his inner thigh. The last one I thought was a spider bite because it was red and deep. it turned into cellulitis and he had to get 2 antibiotic shots in his butt. No answer to what caused it. I like to avoid that outcome ag