Saucy Saturday! On January 13, Kylie Jenner shared a series of photos showing off her abs as she spent the day with her sister Kendall Jenner. The Kylie Cosmetics founder uploaded selfies in a tight black two-piece set, which was cropped to display the brunette beauty’s toned stomach. The influencer looked into the mirror with a sultry pout as she showed off her whole outfit in a video, giving followers a glimpse of her tall black high heeled boots. “Was a cute day 🤭,” she captioned the photos, to which fans gushed over the reality TV star. “Don’t know if I wanna be her or be Timmy,” one perso…