Kendall Jenner was feeling the love on Sunday as she went Instagram official with her American professional basketball player boyfriend, Devin Booker.MORE: Kendall Jenner opens up about insecurities as she shows off enviable figure in skimpy lingerieKim Kardashian's sister posted one picture showing her laying on top of the kitchen counter laughing as Devin lays on top of her.The 25-year-old simply added a white heart emoji next to him accompanied by his Instagram handle. WATCH: Devin Brooker