That's not good.
Wonder what the P-Pad does for her?
spyder
They've apparently solved that problem (numb 'nads) with this one:
http://www.bikercushion.com/AIRHAWK-R-Seat-Cushion-p/cruiser-r.htm This was also the cheapest place I could find it. I ordered one for Judi (BSR) 'cause her butt starts hurting on the stock seat. If it works for her, I may get one as well. There are two issues with the pillion versions, IMO. One, they are basically a rectangle...the large pillion is 11" wide and 14" long. The rear seat on the SERGU is 15" + wide, and about 11" long, measuring from the backrest to the rear of the seat. Since this R version is shaped more like the actual seat surface, though a bit long, I decided to go with it rather than the pillion pad. The extra length will just stick back under the TP, so shouldn't be an issue...hopefully. So the passenger pillion versions aren't really a good fit on the Ultra type seat. Two, I don't know if it will be possible to turn on the heated seat with this on and feel any effect, or if it's even a good idea to try.

If this thing works out for her, I may get another one for my part of the seat, and be sure to get this new R version...measuring the seat, it would be a perfect fit.
I don't care for the way this stuff looks on the bike...much the way I think the sheepskin covers look tacky (no offense to those who swear by them). But, being able to toss it in the TP when the bike is parked will likely work for me, and you won't really see it when you're sitting on it, will 'ya?
I've just read too many negatives about the Gel things to take a chance on it, but everything I've read about the Airhawk has been positive. A better seat is the ultimate solution, but when you've got two different butts sitting on the same seat, it's hard to know if any particular brand is going to work for both of you. My butt likes Corbins, but I think my BSR would have issues, so this seems like a reasonable compromise. We'll see...