Prep for dessert

I look at Sumi with expectations in my eyes. My dick has been hard, throbbing and leaking precum since we've started making dinner, and at this point I really need release... plus, she did somewhat promise I'd be able to fuck her ass.

Sumi is staring back at me. She seems lost in her thoughts for a bit, but eventually focuses back on me, a smile creeping on her lips, as if she came up with a nice idea.

"You stay right there son, I'll get you your dessert~" she gives me a kiss, her tongue coming in to tease mine, before pulling away towards the kitchen. I watch her walk over there, on ass on full display in her blue lace panties. I can tell she's swaying her hips a bit more than usual for me, and I can fully appreciate it.

She rummages in the fridge for a bit before looking back at me. "By the way Johnny, how's your ass? Need to apply more lube?" She grabs the bottle of lube she used earlier and waves it around.

Hearing her mention it, I realize how sore my asshole feels right now. "Yeah, thanks mom. Can you help again?"

"Hmm how about you go in the restroom for that this time, and mommy will set up dessert meanwhile."

We kiss again, grabbing each others' ass, before I head for the restroom for this. Walking in, I'm surprised by a strong musky smell, like cum. Weird, though it's probably me coupled with the fact I'm in a small enclosed room. After all, my boxers are full of precum.

I take the plug out, letting out a small moan of pain. I rinse it off first, before coating it in lube again. As I'm about to insert it back, I stop and stare at it. Should I? Since when have I been into butt stuff. Or at least, when it comes to my own ass. I start reflecting on these last few days, but as I do, I think back of Sumi, of when we're kissing, when she's sucking my dick, of her ass, as she was riding my dad... at this point, my dick is back to being fully erect, and I stop hesitating. I'm doing it all to fuck my new step-mom, of course. Nothing gay here if it's for that cute asian ass, right?

Of course, when going back through those days, I brush aside how I enjoyed the butt plug stuff, her eating and fingering my ass, her kissing me after taking my cum in her mouth... since I'm doing it all to have sex with her, then it's okay. Plus, she even said she might hook me up with some of her friends, though that will probably only happen when my dad is back.

When I walk back out of the restroom, back in the right mindset, I notice Sumi moved aside everything that was on the table. Sumi is standing beside it with her apron back on.

"Hey, everything alright over there? It took you a while." she asks.

"Yeah. I... I'll be honest, I had doubts about the whole 'butt plug' thing. Had to think about it." When I say this, I can see her face fill with worries and insecurities. "But hey, it's back in." I say, trying to cheer her up and keep the mood going.