In a supervised visitation meeting, once she's slotted into a Gemini.
Jun sits down, looking like he's aged ten years in ten days. He spends a moment to gather his thoughts, before asking what everyone he knew wanted to know. "'Toko, we know you have a thing for older men, but Smasher? I get that girls like to be chased, but did you have to make him literally chase you across town? Everyone's seen the dock footage and the AFV camera leak, and I guess I can speak for everyone when I ask 'why?'"
Motoko knew this question would be coming, and had work-shopped a dozen answers, each one more cringe inducing than the last. Eventually she had to go with as close to the truth as possible, carefully ironing the sheets on her now extremely luxurious bed of lies. "You wouldn't understand, Jun-nii." A far away look entered her eyes. "When you're in a frame like that, everything is different. A symphony of sound and color, things we have no words to describe. It's intoxicating, that feeling, and standing across from Adam, I felt it. You can't understand it, but a man like him can speak to you in ways that no other can. I offered, and he accepted, and here we are. Sorry I wasn't able to join the TC like you wanted, but Hiromi is still handling my gigs, so we can still hang out sometimes.
Those omitted qualifiers and very careful phrasing were doing wonders to lie without telling one falsehood. Adam must be listening, and he's laughing his ass off, that fucker.
Jun nodded, before continuing. "Well, I wish you both the best then. Please keep your next date night off the evening news, but if you can't, please keep the mayhem pointed to the south? Fujimura is terrified you'll try to go out for Ramen or something and flatten Westbrook."
Motoko very carefully edited the autonomic routines on her Gemini to prevent her nuclear blush. "I can't really promise that, but I promise that I'll be careful whatever we do." Thinking about it for a second, she decided to go all in on her parting bit of sibling mindfuckery. "And no matter how wild we get, at least I don't have to worry about getting pregnant anymore!"
She could almost see her brother's soul leaving his body, and decided to go for one more dig. "But Akari can. So, responsible brother of mine, when are you going to make an honest woman out of her?" Motoko steepled her fingers in the classic Gendo pose, incidentally perfectly framing her new body's much less modest rack, and leaned forwards. "I can be her maid of honor, and I bet I can convince Adam to be my plus one if I" Sexy Motoko Voice GO! "ask him nicely~".
Eight months later, Yaseiko Kusanagi was born. Motoko never did get to be the maid of honor.