9. Are you loud while cumming? – Yes. I can be quiet if needed, but especially if it's a good one I sometimes find my throat hurts afterwards because I was so loud...
15. What usually takes you over the edge? – I'm not sure if I can answer this to be honest. It depends so much on the session and material. When I'm wanking it's often seeing something arousing but different from the previous stuff. When doing things with someone... I can't really say.
18. Do you like (consensually) ruining someone else's orgasm? – I've never actually tried it! But the idea certainly is appealing. So if you want me to ruin yours, just tell me how and...
19. Do you like being cum in/on? – Absolutely! I'm game for any and all liquids from the genital area on or in my body.
20. Do you like cumming on/in a partner? – YES! Especially in a partner. If I have to jerk off myself to cum on them it's a bit meh (depending a bit on the circumstances, of course), but if they're jerking me or I'm doing it between belly folds or tits (or it's my balls and not cock that's inside them), cumming on someone is amazing.
Sorry if some of the answers were a bit short, I wrote most of this one-handed. Thanks for the asks!