Does anyone know if Hitomi does private dances or private sessions here in the US?
No, she does not escort, do private dances or private 'sessions'. She does porn, that's her job, not what she is. Hitomi also does nude and semi-nude glamour photography, mostly solo but occasionally with another woman. She does shoots in Japan but, again, they are solo or, sometimes, with another woman. You can meet her, shake her hand and take pictures of her at her fan events, mostly in Akibahara - you have to buy a ticket. Her US appearances have been limited to shoots for SCORE and, for the past 3 years, attendance at the AVN in Las Vegas in January where you can take photos of her (non-nudes). Solvegas has shared many of these here and they are fabulous. In Europe she shoots for nadine-j exclusively.
Sorry, Hitomi will remain, for millions of fans, a fantasy only. Her agency - Allure, now called Harvestars - carefully protects her image and her reputation. Everything she does is through them (they negotiated the deals with Nadine-j and SCORE - the only 2 non-Japanese firms which, for the moment, she appears). Hitomi performs for a number of JAV producers, recently she's been pretty much exclusively working for the OPPAI studio which specializes in big breast stars. Because of Japanese censorship law, the genitals are pixelated in JAV movies (some studios have gotten around this by registering off-shore but the women who appear in those unpixelated films do not appear in 'mainstream' Japanese JAV productions). So, even Hitomi's overseas' shoots deny us a view of what must be a wonderful kitty because her contract, negotiated by Harvestars, prohibits it. It's a tribute to her amazing beauty that SCORE and nadine-j have gone along with this and she remains, arguably, the most popular model either site has ever had.
Your question is, however, sociologically interesting. US porn stars often escort or do private dances and the like. This happens some in Japan, but top shelf JAV stars, Hitomi is one of them, are a different category. There are a number of JAV stars who have moved over to mainstream TV for instance. It seems that JAV doesn't have the same negative impact on its top female performers as porn does in the US.