If you mean getting a boner then masturabte or think about sex.
Yes it is possible
You can inflate your shirt. You can take off a pair of ling pants and inflate them. You can keep your lungs as full as possible with air.
Swimsuit is a noun.
nothing rhymes with "purple swimsuit"
Inflate is a verb.
the prefix is in-
By having a confederate rebel flag design on your swimsuit.
swimsuit season...actually end of may...
To fill with air is to inflate
Inflate it with water.
Blowfish/pufferfish inflate with water when underwater, but inflate with air when removed from that environment.