Have her bend over the chair.

You offer your hand to Yumiko to help her stand up and lead her over to the chair. You place a fresh towel on the seat and sit down with your erection, slick with her saliva, proudly saluting her. "Sweetie, I bend over the chair."

"Oooh, I like doggy!" Yumiko squeals.

"No condom?" you wonder.

"I on pill," she replies as as she excitedly bends over the chair and place her hands on the armrests, her large breasts hanging. For a moment you hesitate but your lust overwhelms any doubts about fucking her bareback. Grabbing her tiny waist, you lower her onto your waiting cock and she clenches her eyes close as her pussy slowly swallows your cock.

"Shit, you're tight!" you grunt as the last inch of your cock sinks into the tightest snatch you ever fucked. Yumiko mewls as her pussy adjusts to the thick cock stretching it and the two of you savor the mind blowing sensation of her cunt constricting around your thick shaft. You grab her tiny waist and pull her against your thrusts.

"Oh! Oh! Oh!" she cries. You reach under and cup her flailing tits, kneading them with your forefinger and thumb pinching her erect nipples to make her cry more.

After a couple more minutes of you banging her from behind, Yumiko suddenly stops, stiffens, and throws back her head to let out an orgasmic cry. Without the latex barrier of a condom around your cock, you can feel the hotness her cunt pulsate around your throbbing shaft.

After her orgasm finally subsides, Yumiko over her shoulder at you with a tired smile. "You no cum?"

"Believe me I want to cum but I want to fuck your tight pussy as long as possible," you grin.

"Good, I like your big cock in me," she giggles, giving your cock a playful squeeze with her pussy muscles. "How you like to fuck me next?"