That would be one long booking! Eat, grow, wank?
A fuller figure can definitely be very sexy, though for most men there is a line between (a) voluptuous and sexy, and (b) fat and frumpy -- but that line is very variable depending on which bloke you ask. For some, a size 10-12 is too big, whereas for others (like me) a size 12-14 (especially if she's tall as well) can be very sexy indeed. To wit, Miss Robyn Lawley (pant! pant!):
Apart from finding such women very sexually attractive, I much prefer cuddling and caressing a curvy courtesan afterwards than an anorexic one with sharp ribs and elbows.