Just for something different your partner is positioned over the side of a bed. Feet on the floor with waist to head laying flat on the bed. You spread lots of lube in the crack of her ass. Maybe do a bit of ass cheek massage. Do not touch her anus and do not exhibit any intent of wanting to ass fuck her.
You also cover your cock thick in lube. Now you just allow your cock to slide back and forth across the crack of her ass. You are stimulating her anus but never actually penetrating it with your cock. You are about to explode and let her know that it’s coming. You shoot long ropes up her back. As you finish your final dribbles rest in her ass crack.
One NO NO is try to avoid having one of your shooting ropes to reach her hair. There seems to be a big taboo of even a bit of semen in the hair.
This form of getting off will sometimes lead to regular anal. You haven’t asked for it. But the stimulation of your cock across her anus may sometimes put her in the mood for regular anal. Several times as I was just cruising across the crack of her ass she has asked me to please shove my cock into her ass.
This is because it’s a pain in the ass to wash out, but if you time it when she’s planning to was her hair she might not mind as much.
It’s because you have to wash it with cold water. Hot water will basically cook semen and make it much harder to wash out.