Farting & Anus after losing virginity

[Anonymous]

I understand this is a weird confession, not so serious, but I just like to know if I'm the only one who lived the same experience.
It's not an amazing topic at all, but I'm curious. I'm doing it anonymously cause I'm a discrete and clean person and talking openly about it...It's not for me.

So...

I never used to fart. Literally, do you remember those stupid friend that used to make fart-jokes? I don't even understand how they do it, etc, even If I never had any problem with my intestine (and all the rest of the digestive system), actually I'm very healthy about this part of my body. I suffer very rarely for gastric disturbs etc, and I never used to had that "air in the stomach".
Until I had sex (anal of course) for the first time. I remember that during the first days after the sex I needed to use the toilette more often than the usual, I was not scared, but.. I also don't remember, cause it was long time ago.

Now I still don't fart easily but since that night I think my anus is loosen in some way, and if I feel 'that air' I can stimulate my buttocks to 'open up'.
Am I that weird? Also what do you think about it? Is it normal to be 'more open' after your first night?
Thank you and sorry for this weird topic.