body paint or flavored massage oils
light bondage (e.g. with a wool scarf or velcro cuffs)
more complex bondage with ropes and fancy knots
biting (not breaking skin, of course)
back scratching (not breaking skin, but leaving a mark)
nipple pinching with fingers
a light spank with a hand
a full-on spanking session, maybe with a prop like a paddle
light erotic asphyxiation
domination/submission (e.g. "you're my love slave tonight and must do whatever I ask
role-playing (e.g. "I'm the strict teacher, you're the naughty student
dressing up (e.g. wigs, costumes, and/or props, etc)
rubber/latex/pvc/leather erotic-wear
flagellation (with a crop or whip)
golden showers (in the shower counts)