Yes he can, that has literally not been an issue the entire story
It did take a while for that to happen though.
After joining the Academy, he only got to do it with the Dorm Lady, and that too not regularly.
Only after that Teacher spread the rumor (as a revenge) of MC doing it for money, did MC get to take advantage and bang girls more often.
But then again, girls who had already done it once won't got to him again immediately, unless they really needed it. And there were also many girls who didn't do it with MC and looked down on him.
So, while MC was getting to bang consistently, it wasn't on a daily basis.
Especially because, he couldn't ask the girls to let him bang them, they had to come to him.
As far as we know, currently, the only ones who does it regularly (though not daily) with MC are his Master, the Dorm Lady, Bro Girl and her Sister (don't know about the Teacher though). The rest do it only when they feel like it.