You couldn't have sex with Black Maria even if she consented and let you. She wouldn't feel a thing, it'd be a hotdog in a hallway situation that would bring her no pleasure. She'd ask if you were done yet after you've already came because she can't possibly feel it, and your pathetic jism wouldn't even travel halfway up her vaginal canal. You couldn't hope to impregnate her. Her eggs are at least five times larger than a normal female's ovum in respect to her proportion, so even if if you ejaculated 200 MLs of semen, it wouldn't be enough, your sperm cells are simply too small to be able to actually penetrate into the nucleus of her ovum. It'd be an embarrassing situation and she'd laugh at you after the fact and say you couldn't bring her pleasure even if you shoved your whole body inside her pussy.

Give up.