I know this is the zillionth "what to wear" question but here goes:

I'm doing my first tri at the end of June and am wondering how uncomfortable it would be to bike and run in wet bike shorts (with a cycling chamois not a tri chamois). I absolutely can't run in my bathing suit - my thighs would spontaneously combust about 1k in without fabric between them. :p

I am in the midst of losing weight so I don't expect to be in the size I would be now for too much longer - hence my reluctance to buy shorts that might well only be used once!!! I need a primo chamois in my shorts on my bike so I certainly wouldn't ride in tri shorts except during the race.

I am planning on wearing my jogging bra and cycling shorts in the pool and showing off my less than flat tummy until I make it to the transition zone and can put a tshirt on.

Thanks in advance for any advice !!