Bad Teacher by Gina L. Maxwell

He’s her student, but he wants to teach HER a few things…in the bedroom.

It wasn’t easy for substitute teacher, Miriam Fox, to ignore the blatant flirtations of the senior class president and All-American jock, Devin Adler, but she managed—despite her brain conjuring the exact opposite in her dreams every night.
When summer break arrives and Devin graduates, Miriam forces herself to shake off the inappropriate attraction for her former student and move on…until he shows up in place of his father to do the landscaping job she contracted him for.
Now Devin’s working in her backyard for an entire week, shirtless, gloriously sweaty, and back to his old tricks, with one major difference—now that school’s out, Devin’s determined to seduce Miriam until she agrees to his proposal: one week, no strings, anything goes.
And with every heated glance, Miriam forgets more and more why giving into temptation is such a bad idea.