I was in between 4th and 5th grade when I first saw ROTJ, so I wasn't aroused by Slave Leia, since I didn't start finding girls sexually attractive until after starting the 7th grade (you could call me a late bloomer, I guess). I knew she was meant to be titillating, though, and that made me uneasy since I wasn't really comfortable with viewing blatant sexuality with my family back in those days.

Later on, though, I did find her arousing in that outfit, but only mildly so; her "assets" were obscured behind the loincloth, and she wasn't filmed from particularly great angles, IMHO, to take full advantage of her "curvaceousness". Overall, I find Slave Leia in ROTJ underwhelming.

If you take drawn depictions of Slave Leia into consideration, though ...

... then it's a different story altogether =P