Forbidden lessons with my mafia brother -in-law

From the back cover

"I am going to teach you how to ruin my brother in bed, Julianna. But don't you dare catch feelings."

Julianna Russo has six months to become a woman she's never been - experienced, fearless, ready for a wedding night she's been lying about for a year. Her fiancé Alistair Marchetti, heir to New York's most dangerous crime family, has made it clear: disappoint him, and he'll destroy everything she loves.

There's only one man dangerous enough to fix this before it breaks her. Dante Marchetti - Alistair's exiled older brother, the city's most notorious underground kingpin, and the only man who's ever truly known her. Three years ago, in Las Vegas, he vanished without a word and left her heart in pieces. Now he's back, and he's the one person standing between her and ruin.

He sets six rules. No love. No mercy. No mistakes.

She breaks every single one.

As their secret lessons grow more reckless and the wedding clock keeps ticking, Julianna is caught between the brother she's promised to marry and the one she never stopped wanting - while a family secret buried three years deep threatens to detonate everything the moment anyone finds out the truth.

In a world where loyalty is currency and love is the one thing that can get you killed, Julianna must decide: survive the marriage she was sold into, or burn it all down for the one Marchetti she was never supposed to choose.