STDs/STIs from skin to underwear grinding?

[Aafik]

Hi I'm a woman in mid 20s and I've never had intercourse but was involved in two brief penis to underwear grindings and unprotected oral with two different partners. Both of them were virgins and I was their first sexually involved partner.

The first time was when I was 16 and I've never had any symptoms of any STDs/STIs so I'm pretty confident I didn't get anything from him(he probably didn't have anything to begin with). My last experience was about 7-8 months ago. I had a brief moment when my partner's penis was in contact with my wet underwear when he was rubbing from behind.

I wasn't concerned about those two encounters because I know there is close to no risk of me catching anything from two inexperienced partners. However, I met someone new and since we discussed about having intercourse, I'm concerned about any chances of me catching STDs/STIs from my previous experiences.

[wood2361]

You can't have contracted anything from the contact with your underwear on . You're underwear would have served as a barrier. As far as the unprotected oral sex , if you're positive they were virgins then you are correct . There would be nothing to contract.