What is something nice and fat soluble you could put into a massage oil possibly to give it a little extra kick? I was thinking that mixing up extracted THC oil might do the trick, but then I wonder how effective that would be.

What do you guys think? What would you add?

This wouldn't work very well for a few reasons. By the time anything began to enter the blood stream the massage would be other (unless your having a body rubbing marathon) and would trickle in such small quantities that the overall dose would have to be rather high (probably dangerously so) to do anything with any speed. Without a rather immediate effect there's not going to be a connection there between the extra boost and the massage which would defeat the purpose.

It might be possible to work something out if you were using the lotion as a sex lube or maybe even possible to spike yourself with something that would work subligually on her during fellatio (or vise versa)

Yes the THC in the butter err um lotion takes quiet some time to build up. You're looking at 45 min before the slightest effect, but 30 min from their you're pretty good, if I recall correctly...

As for dangerous, I'm pretty sure you couldn't afford to make the butter err um lotion potent enough to become dangerous, that is assuming your butter I mean lotion has a saturation point high enough to handle the amount of cannibanoids needed to be dangerous. Otherwise I can personally guarantee you that the only way your sautéed butter conduction will be dangerous is if you were to drown in it - maybe bathing in it while while doing some serious binge smoking.