Her Dirty Little Secret by JC Harroway

Nothing satisfies billionaire Jack Demont more than keeping socialite Harley Jacob from what she wants. After all, their families hate each other and there's unfinished history between them... along with some serious sexual chemistry! Now they're consumed by a wicked game of lust - they'll give each other mindless pleasure, but nothing else. No one can know, but keeping something this sexy a secret makes everything a whole lot hotter...

The Marriage Clause by Alexx Andria

Katherine Oliver is not interested in getting married. The only problem is she can't keep her hands off gorgeous billionaire Luca Donato, who wants to put a ring on it! So she puts Luca to the test in an X-rated battle of wits-to persuade her that their nights of passion can turn into something more!