The Bachelor's Colton Underwood Bares Buff Muscles After a Workout with Jake Miller

Colton Underwood puts his buff arms on display in a cut-off sweatshirt while leaving the gym on Thursday morning (February 28) in Altadena, Calif.

The 27-year-old reality star, who is the current star of The Bachelor, was joined by singer Jake Miller and actor Gregg Sulkin for the workout.

PHOTOS: Check out the latest pics of Colton Underwood

Colton and Jake played a game of basketball earlier in the week. Jake captioned the photo on Instagram, “1 on 1… get it? 🏀.”

The highly anticipated “jumping the fence” moment on The Bachelor will finally air on Monday.

30+ pictures inside of Colton Underwood leaving the gym with Jake Miller…