(bit of background- they were discussing how Owen's lack of blood flow meant he could no longer get little Owen up.)
It would be a simple matter for Tosh to construct an erectile pump for Owen. It's a common enough device for impotence these days, and would work even without alien technological enhancements. I guess he still wouldn't feel anything...but she would.
...is going to inspire a lot of bad fic. Now I'm all for Tosh/Owen...but this is not the way to do it! *lol*