PHOTOSBig Kid! Rob Kardashian Cannot Stop Smiling While With King Cairo And Blac Chyna Amid Pregnancy Rumors

March 18 2016, Updated 12:54 p.m. ET

Rob Kardashian was like a kid in a candy store this week! The slimmed down reality star headed to Legoland park ahead of his birthday alongside his girlfriend Blac Chyna and her son, King Cairo!

And we don’t know who had more fun—King or Rob! The 29-year-old looked better than he has in recent months thanks to the healthy meals Blac Chyna has been cooking for him.

He showed off his slimmer figure in a white shirt and grey shorts.

And while Blac Chyna often shows off her curvy physique, she dressed for comfort in an oversized sweater and colorful leggings.
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The loose outfit certainly does nothing to silence rumors that she may be pregnant with Rob's child! While in Jamaica last week with Rob, her stomach looked larger than usual, prompting the baby speculation.

By the looks of it, Rob would more than okay with giving King another playmate!

What are your thoughts on Rob spending his birthday with Blac Chyna and her son? Let us know in the comments section.

