I really can't explain a lot of what will get me going, but I suspect that no one really can. It's just how we ended up wired.
For me, and in no particular order, some things that really get me immediately interested are:
. Public nudity
. Scenes where the woman gets naked and the man stays dressed
. Scenes on boats
. Scenes in cars/trucks/vans including road head
. Scenes in or around beaches, pools or hot tubs
. Milk or cream enemas
. Any food inserted anally
. Red hair (with or without freckles, though freckles get me really going)
. Scenes staged as a photo shoot that turns physical
. Scenes with a first anal
. Scenes in strip clubs, with strippers or lap dancing
. Petite (okay. skinny) models
. Scenes that begin with the model in street clothes
. Scene where the guy writes on the model (like "SLUT" on her forehead or "FUCK ME" on her ass)
. Large anal insertions
. Faux incest scenes (father/daughter)
. Older men with younger women
. DDLG scenes
. Cheerleader outfits
. Scenes where a woman tries on and models clothes for a guy (especially if the guy is older, like a dad or uncle)
. Using a slip'n'slide as part of the scene setup (yes this is both rare and VERY weird)
. Scenes with games to initiate sex, like strip poker
. Christmas or Easter outfits (and some Halloween costumes)
. Messy facials
. Scenes with a messy facial that is then scooped off with a spoon and fed to the model
. Blowjob contests
. Scenes that accidentally break the fourth wall (like when a director gives direction that doesn't get edited out or a crew member ends up in the shot - no idea why this works for me but it does)
. Any scene where the woman rims the guy, but especially the less frequent positions where the guy is standing and the woman kneeling behind him
But sometimes it's just a look that the model has or how she glances at the camera or her male co-star.
So, as Julie Andrews might sing, these are a few of my favourite things.
If you need examples of any of these, I can probably provide them
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