Oh Telly! I am the queen of spray tans! I even own my own machine! Haha... Brian sprays me!
Yes, the lady will get you to lift up your boobies! I never get asked to.... That's what happens when you have fried eggs!
With your skin the tan should look good for at least a week, with dryer skin types it goes patchy faster.
You can wear whatever you like when you go for a tan! I wear a G-banger but my sister likes to wear her boylegs.
You may find that it does fully cover up your singlet marks.. It will make it a few shades darker but the rest of your skin will also be a few shades darker so it may still be a teensy bit obvious but you can use some brush-on bronzer as well if you need too.
The lady will absolutely NOT giggle at you! The lady who used to do my tans told me that she had been tanning this particular lady for years and noticed a new tattoo on her. Apparently it wasn't new, it had always been there but as she is so busy looking at where the tan needs to go she had never noticed it! That always made me feel better!
Be warned that you may get addicted to tanning... I always feel so good about myself afterwards! Everything seems to look so much more toned!!
Good luck! I know you will look just beautiful! Xxx