I find you use grok and say describe the picture like porn works well and then edit the penetration part like below.
"A sultry, raven-haired vixen with impossibly full, gravity-defying tits sprawls across tangled white sheets, her creamy skin flushed pink and slick with a glossy layer of sweat that catches the dim light. Her enormous, round breasts bounce hypnotically with every ragged breath, nipples stiff and begging for attention. One toned leg, clad in sheer black lace stockings with intricate garters, is slung high over a chiseled stud’s hip, his rough hand digging into her soft thigh as he pins her down. His massive, pulsing cock—veins bulging, tip glistening with her juices—slams balls-deep into her soaked, swollen pussy, her tight pink lips gripping him like a vice with every brutal thrust. Her slick folds stretch obscenely around his girth, dripping with arousal as he pounds her mercilessly, his heavy balls smacking wetly against her quivering ass. Her head tilts back, mouth agape in a throaty moan, eyes rolling in raw, animalistic bliss as he fucks her into the mattress, the air thick with the scent of sex and the obscene squelch of their bodies colliding."