Last week, 17-year-old "Keeping Up With the Kardashians" star Kendall Jenner posted a photo to Instagram that had everyone talking about her lucious pout. Donning pink lip gloss, the reality star's new selfie raised concerns that she may be getting collagen injections.

Although Jenner turns 18 next week on Nov. 3, celebrity psychotherapist Stacy Kaiser told FOX News's Pop Tarts column that if she is getting lip injections, it could be cause for serious considerations even if it is technically a non-surgical procedure.

"As a teenager your identity is developing and so if you start getting this work done now it becomes part of who you are. You grow up thinking you need to enhance, alter or change your looks in order to be attractive," Kaiser said. "I always say that kids learn what they live. Kendall learned that focus on appearance is critical so it makes sense that she would already be trying to enhance or alter what she looks like."

If Jenner did get lip injections, she certainly wouldn't be the first. Her famous family is known for their love of plastic surgery, including her big sister Kim Kardashian who has altered her face so much since 2006 that she is nearly unrecognizable. Mother Kris Jenner is also a fan of Botox and cosmetic surgery, the reality star and momager having underwent a new facelift this January to deal with her neck and crow's feet.

However, Barry Weintraub, MD, a NYC-based plastic surgeon, told Pop Tarts that it isn't uncommon for teens Kylie Jenner's age to undergo cosmetic procedures and seek out artificial enhancements.

"Some teens, even at 18-year-old maturity are born with very [thin] lips...Then [it is] totally appropriately to conservatively augment the upper and/or lower lips with small amounts of Restylane, which is what it looks like she had," he said. "Kendall is a role model for a lot of young girls, they look up to her and they want to be like her. This may drive a lot of young girls to ask their parents to get the same thing done."