Have to ask, but why is the assumption that the second bomb was in either her lady bag or her ass?
I mean, I've seen it, and she doesn't say, for whatever reason. I'm just wondering if this is something that is described in the tapes (I don't have them all yet) or is the mass imagination of the internet gone wild.
I honestly thought it was in her chest next to her heart, for thematic reasons. As she seemed to have her heart torn between her duty to Cipher and her like of Big Boss and Mother Base.
But everyone else jumped to the perverted conclusion, lol. I'll admit that it's more likely that they're right than I was, but I don't think it's 'obvious'. I haven't heard all of the tapes, though.
It wasn't jumping to a perverted conclusion. It's par the Kojima course. Damn near every Metal Gear Solid game has had rape at the very least implied. Meryl in MGS1, Eva in MGS3, Paz in MGS

W, and IIRC at least a couple of the beauties in MGS4. Some are more obvious than others, but it's ALWAYS been there. This was probably the most direct depiction of it but that's what it is.
And the last tape pretty much seals where the bomb was. Paz was already stitched back up when the bomb was placed, that limits it to exactly TWO locations.
The stuff is horrific no doubt. But the interesting thing, is that unlike every other instance in a Metal Gear, it's not a throwaway line. Skullface doesn't to what he does because he enjoys it, or at least that's not how it seems to me, he does what he does to fuck with the heads of everyone. He systematically breaks both Chico AND Paz. He gets exactly what he wants from each of them, and does horrible stuff to succeed.
If you haven't heard tape 7, listen to it. It is goddamned heart-breaking.
Paz being foced into sex: "omg disgusting, tasteless, sexism huhuhu"
Chico being forced into sex: "...what? who?"
Kinda this, Paz was at least a spy. Chico was a 13 year old boy in over his head. He was just as brutally tortured (save the bombs) was forced to have sex with the woman he had a crush on in horrific circumstances, had bolts driven through his tendons, and lord knows what else. No one cares about Chico though.
What happened to both of them made me ill. Which I'm sure is what Kojima was going for.