This is hardly the first -- or second, or third, or infinitieth -- time we've seen Kylie Jenner in a bikini. But this is the first time we've seen Kylie rock her own bikini line.
The 18-year-old fashion designer showed off more than a little cleavage wearing a strappy yellow and black bathing suit with "KENDALL + KYLIE" emblazoned all over it. "Shooting Kendall&Kylie swim for TopShop. Coming soooon," Kylie captioned the photo.