Olivia Wilde turned her spinning class into a big freeze because she insisted on cycling when she was hot and bothered at over eight months pregnant.
The Tron: Legacy actress gave birth to Otis last year (14) and admits she kept up her fitness regime until just before her son was born, much to the annoyance of her fellow SoulCycle classmates.
She tells Shape magazine, "I loved being pregnant. I felt unapologetically curvy, sexy, and intensely feminine... Pilates became a healthy habit, which helped me avoid common pregnancy woes like sciatica.
"I did SoulCycle until I was eight-and-a-half months, when I was physically incapable of walking between the bikes and had convinced them to turn the air conditioning so high that my fellow spinners were actually freezing, despite prolonged sprinting uphill."