This article is from the X-Men Comic Books FAQ, by Kate the Short (email@example.com) with numerous contributions by others.
You may not believe this, but you are not the first person to have this
brainstorm. As a matter of fact, you're nowhere near the first person to
think of this. You could have been meditating on this particular
solution to their troubles for centuries in a monastery in Attilan and
you'd still be nowhere near the first person to suggest this. This is a
suggestion which is offered so frequently by newbies to racmx that it's
capable of infuriating the long-term inhabitants of racmx just from its
frequent re-presenting, without even considering its innate
distatefulness. Just how great an idea it is to use a school kid as a
sexual aid? Ick.
This is closely related to the above power nullifiers question, and much
of the sage wisdom of that response applies here, as well. However...
UXM #349 neatly sidestepped the problem by subjecting both Gambit and
Rogue to a power-dampening field in Magneto's old Antarctic base. Of
course, the Comics Code kept Lobdell from actually saying anything
physical happened between them. The question that comes up next, then,
is: Did Gambit and Rogue actually have sex between #348 and #349?
The debate is far from settled, but the general consensus is that while
they certainly had a good time together that evening, full intercourse
probably didn't happen.
Given that Rogue was left powerless after events in X-Treme X-Men, the
question is possibly moot. In X-Treme X-Men #31 she shows up wearing
skimpy clothes and sporting one heck of a tattoo, and kisses Bishop full
on the lips. If she felt ready to take her relationship with Remy to the
next level, she's probably done it by now... assuming that she felt ready
to do so. Either way, it's her business, so until we see Rogue and Gambit
on-panel being very specific about their activities during those months,
the best one can assume is "probably." If her powers do come back, assume
that they'd use a power nullifier for moments alone, and not bring Leech
(or others) into their personal matters.