18YO NYXI arrived at Mr. Smith's Mansion for a weeklong stay of fun dressing up and playing with her favorite step-Daddy. Upon her arrival Mr. Smith chose a heavy stiff metal chastity device for Nyxi to slip into. Mr. Smith explained to her 'dripping pre-cum all over is fine but your job is to serve and you will not cum for a whole week.' This made Nyxi stiffen and she was overwhelmed with the need to serve her handsome step-Daddy immediately. She did not have to wait long as Mr. Smith was walking through the sitting room when Nyxi asked him if she couple please have a taste of his magnificent cock. Mr. Smith soon had his pants down and his massively thick cock was sliding perfectly into Nyxi's gorgeously lipsticked lips. She could barely get the massive head of his cock into her mouth. But with a huge stretch of her jaws it slid in. Nyxi could hardly handle the joy of taking this huge BWC into her mouth while her own cock strained at her chastity. Nyxi took his whole cock and deepthroated it. She crammed it into her throat. She keep sucking and sucking. Innocently Nyxi looks up at Mr. Smith and asks, "Mr. Smith is there a BLOW JOB HEAVEN." Mr. Smith assured her she was on the proper track and if he CAME HUGE LOADS into her MOUTH, she would soon find out. Nyxi is beyond total happiness when Mr. Smith ERUPTS with a huge load of cum to welcome her to her version of BLOWJOB HEAVEN.