You're about to agree, then remember lunch. "Yes, but Mom's making me a sandwich. I can't..."
Tomi grins and tells you, "You're off the hook, but you gotta pay it back double tonight!! Hang on a sec..."
She breaks free of you and scampers to your room, then comes out tying a terrycloth belt around a silk robe that doesn't really match it. "Your mother wouldn't say anything, but I think she doesn't approve of me dressing that way. Let's go."
You both head to the kitchen, where your mom looks at her and tells her something in Japanese. Tomi grins and looks down at her chest and back up while she answers.
After deciding that your mother would have taught her children Japanese, you know that the exchange was, "Tomi-chan, that's not the way to wear a yukata."
"Sorry, Okaa-san. I really love your gift to me, but my boobs ruin the look of yukatas. My mother says they make me look like a Japanese hooker."
When you sit, you find Mom has made Tomi a sandwich too. While you are eating you ask, "Didn't you get lunch?"
Tomi shakes her head. "I wanted to wait for you. You sure took a long walk today."
"Sorry. I kind of lost track of time. What did you do all day?"
With a giggle, she says, "I found a stash of girl-on-girl porn on your computer, so I just watched videos and played with myself."
You're a little amazed she said that right in front of your mother, but when you look Mom's way, she smiles at Tomi and notes, "You should try to be a little quieter while you do it, daughter-in-law. A good girl does these things discretely."
After Mom leaves the kitchen, you ask, "So you like girl-on-girl stuff?"
Tomi giggles again-- damn she has a cute voice, you think-- and gives you a coy look. "You know I prefer girls, Max. We've done girls together enough times for you to know that. You're the only guy I like."
While she says it, her hand slips over to rub your rapidly hardening crotch under the table. She adds, "Which is good, because Okaa-san seems to have us married already, calling me 'daughter-in-law' like that."
While she stealthily unzips your pants, still nonchalantly munching the sandwich in her other hand. Unable to resist the temptation, you make a tweak and ask, "Well we are, right?"
She shrugs, "Legally, yeah. We haven't told anyone outside the family, or had a ceremony though. Except that thing at the courthouse. And I'm still living at my parents. So I feel like we're still just fucking around."
After licking the crumbs of the sandwich off her fingers and taking a swig of her ramune, she slips under the table and begins sucking you lovingly. This, you realize, is not bad.
Your cock is free, and she starts jacking you off as she finishes the sandwich.