Kendall Ryan 
Sinfully Mine [EPUB ebook] 

She was forbidden.
I didn’t care.
As my best friend’s little sister, Macey Hale was off-limits. Tempting as sin, and forbidden as fuck. I wish I could say that stopped me. I wish I could tell you I behaved like a gentleman.
I didn’t.
When she waltzes back into my life with that same spark I fell for, looking every bit the beautiful woman I knew she’d grow into, I have to force myself to remember I’m different from the man she once knew. I’m colder. Harder. And for good reason.
With my heart on lockdown, and my hands aching to touch her, I set out to prove that I can keep myself in check this time.
No strings. No attachments.
And definitely no falling for her again.