VR headset, and then a little assembly thing with pistons and pivots for all axies, that follows the holes position ingame. There you go now... about the acctually building part...
You more you think about the FapBot concept (especially
in the way Karma Tatsuro presents it), the more titillating
it becomes. Tatsuro is a hentai genius.
Note the "Continue" box on the FapBot screen (page 4, panel 3).
Does the "5" underneath mean the kid has cum five times in one
session? Or has cum four times, and is being invited to pay for a
fifth round? Death by FapBot!
Your explanation is so much better than mine. It reminds me of the
French expression, la petite mort ("the little death"), which is often
used as a metaphor for a mind-blowing orgasm.
So whenever the FapBot user cums, he has (metaphorically) "died"
and is immediately invited to keep playing/cumming.
(I guess the FapBot designers never heard of the refractory period.)
The FapBot booth has minimal privacy (and apparently no soundproofing at all),
because the user is concealed by only a loose curtain. Secondhand titillation for
any horny young eavesdroppers!
This short-but-sweet chapter reminds us that the Teenage Schoolgirl is the central icon of Japanese porn. She is the pillar upon which all hentai rests.
The background conversation on page 2, panels 4-6, is apparently a pre-recording
played by the FapBot, to create the illusion that the customer is being jerked off by
a cute schoolgirl in public, in a crowded classroom (to the pre-recorded envy of his
classmates, no doubt).