Do some vaginas hold more semen than others right after an ejaculation?

Gracie

My guy is not necessarily long but has a girthy penis. Oftentimes his semen comes out of my vaginal opening while he's still inside me. My girlfriends say it comes out of them when they get up to use the bathroom after sex, (which happens with me too) but not so much right after their partners' ejaculation and while still penetrating them. Do you think my vagina's capacity to accept an ejaculation is less than that of other women?