Kourtney Kardashian sets pulses racing as she shows off curves in tiny black bikini
![Kourtney Kardashian sets pulses racing as she shows off curves in tiny black bikini](https://i2-prod.dailystar.co.uk/incoming/article28060403.ece/ALTERNATES/s615/1_Kourtney-Kardashian-shows-off-her-curves-in-a-very-tiny-black-bikini-as-she-jumps-up-and-down-amid-p.jpg)
The reality TV star shared the calorie-burning benefits of "bouncing" on a trampoline as fans speculate about whether the 43-year-old socialite may be pregnant again