Tip itched for a while then stopped /u/joebidensmotherinlaw Sex

I want to know what might’ve caused this because I believe there are several factors as to why this happened. So for context, I got oral from my girlfriend. Both of us has never had sex with another person but each other, and we were pretty inexperienced. The tip of my penis was itching for a while after 1 hour we did it. it looked like I got a mosquito bite there at first, not too bad but then I washed my penis thoroughly with soap and the itching stopped. My girlfriend had a cold and told me after I did it. So could this be the reason? or possibly because her teeth came into contact with the tip which got it irritated, or something worse like an STD which I doubt because we both have never had sex with another person.

I want to know what might’ve caused this because I believe there are several factors as to why this happened. So for context, I got oral from my girlfriend. Both of us has never had sex with another person but each other, and we were pretty inexperienced. The tip of my penis was itching for a while after 1 hour we did it. it looked like I got a mosquito bite there at first, not too bad but then I washed my penis thoroughly with soap and the itching stopped. My girlfriend had a cold and told me after I did it. So could this be the reason? or possibly because her teeth came into contact with the tip which got it irritated, or something worse like an STD which I doubt because we both have never had sex with another person.