I feel it necessary to clarify what rape is or could be. Consider two hypotheticals:
1. Israeli soldiers capture Palestinian man, and in an effort to violate and break his spirit(and by extension that of his friends, family & countrymen) stick their rifle barrels up his ass, possibly other non-biological objects not intended for sex or tenderness(markers, baseball bats, doorknobs, etc)
2. Israeli soldiers capture Palestinian man, undress him and themselves, begin to caress his oily, tangled chest hair, then flip him over and put their penises in his asshole and fill him with ejaculate.
Both of these hypothetical are "rape,'" both are gay, both are awful to endure... wait, where was I going with this? I guess the means and motives matter a little. Scenario 1 is more serial killer territory, Scenario 2 is tsundere romance.