That can be a very, very complicated subject and it has to be taken in individual context. There is no easy formula for sexual abuse or rape. Mars, Uranus and Pluto have to be looked at closely when you look at rape.
A few cases of sexual abuse among siblings under coercion signals I studied - Mars or Pluto in 3rd, Mercury tied to Uranus or Pluto, Pluto in 7th or 1st, Mars conjoined to ruler of the 3rd House, [the offender] Neptune Chart Ruler next to Mercury. Bear in mind - ONE OF THESE, even three, is not sufficient.
In one of the cases, the abuser had their South Node in Gemini. In this case, blended with this, the synastry was bad. Pluto was hitting 7 of the victim's planets including Mercury. The offender's Pluto was conjoined to the victim's Sun by 0''48 degrees. Extreme (paternalist) control, the victim to some extent kept thinking their brother was just misguided and capable of being loved even after he raped them and went to prison for murdering someone else. The Mars of the abuser was in the 8th House of the victim.
Now obviously, if this didn't involve a sibling, it wouldn't involve the 3rd, or Mercury, or Gemini. If it was a rape by a long-term partner, you'd want to look at Venus and the 7th instead, or perhaps the Moon. Just use logic here.
Fixed stars, degrees, Persephone, Circe, and other Asteroids can be involved with this too, coloring the meaning highly. For those on lower dimensions these Asteroids can have negative meanings of being put under the whims of others.