I mean... we have eyes!

Sofia Richie is looking a LOT bustier these days, and we are almost positive she got a boob job for her 20th birthday! That would also explain why we haven't see her out and about for the past couple weeks, up until she emerged with noticeably larger cleavage in Mexico on vacation with Scott Disick and his kids. Hmm...

Lionel Richie's daughter might have gotten surgery to boost her self-confidence, as we're hearing that she's very worried about her boyfriend's ex Kourtney Kardashian trying to win him back now that she's single again.

"Sofia is madly in love with Scott and she fears Kourtney will never get over him. Sofia does not believe for one minute that Kourtney does not want to get back together with Scott which make her very uncomfortable. Sofia sees how Kourtney looks at Scott and is well-aware of how much they still talk which makes it hard for Sofia to feel secure with Kourtney always around," a source dished to Hollywood Life.

"Sofia feels like as long as she is with Scott, she will always have a target on her back and will have to keep her guard up around Kourtney. Sofia sees how sexy Kourtney looks and now that she is single again, Sofia is afraid of what Kourtney may try do with Scott," the source added.

The Lord's lady looks like she got an upgrade! Just for comparison, this is what her chest used to look like...