Ok so this did happen many years ago but I thought I would ask you guys anyway!
As we know us lads often go through a curiosity stage, often during puberty.
Well I went through this with my friend greg, we both used to wank infront of each other, I remember one time we were thrusting our hard cocks into each other's gooche area! pretty intense! Sadly we never jerked each other off and I was always the one who would go first and be more open.
Anyway one time he dared me to give him head, I went to the bottom of his bed and went under his covers, I remember seeing his white boxers and a massive bulge! Then all of a sudden I got a huge stabbing pain in my stomach and had to retreat, and that was the opportunity gone!
Has this happened to you before? was it a sign that I would regret it? or just ultra anxiousness?

Thanks

Sam