Tag names (trigger words) mostly follow BooruDatasetTagManager conventions. You can use "watermark" and "blurry" as negative tags.

Tags:

trans girl

penis, erection, half-erect, flaccid, big penis, balls, ass, small breasts, large breasts, thick thighs, dark skin, tattoo

from below, from above, from side, rear view, close-up, taker pov, faceless, outdoors

thighhighs, panties, bra, thighhighs, socks, penis outline, bulge, see-through, negligee, skirt

penis grab, touching penis, touching belly, touching ass, touching breasts, touching chest, touching hair, touching head, touching legs

panties aside, pulling panties, pulling up clothing, skirt lift, poking out

open mouth, orgasm face, selfie

masturbation, ejaculation, precum, cum, cum drip