Bikini sideboob
A bikini sideboob is a view of the side of her boobs caused by the design of her bikini top by intension. It is a sideboob caused by a bikini top and an intended bikini peek. Typically the sideboob does require to be positioned beside her in order to get a full view of the profile of one her tits, while her tits appear fully covered from the front. Typically bikini sideboobs require a minimum breast size of medium tits.
Important: A bikini sideboob is intended by her and requires dedicated sideboob-friendly design. If the view to the sides of her boobs is caused by the a malfunction of her bikini top, it is not a bikini sideboob but a nipple slip!
Function of a sideboob: Wearing sideboob-friendly clothes allows women to display their tits on the beach even if going topless is not tolerated.
Depending on her body position there are standing horiziontal bikini side boobs and lying vertical bikini side boobs. A good sideboob leaves little to no space for imagination about her breast shape.
Bikini sideboobs are mainly documented by beach voyeurs.

