Momma Says 4 out 5 stars⭐⭐⭐⭐
Billionaire's Game is well-written in first person, dual POV with chapters alternating between the two main characters. It fits well into the Romance genre, and although the title does claim that it's a Dark romance, I didn't find anything particularly dark about this one. It is steamy and contains adult situations, so certainly an 18+ recommendation.
*ARC provided courtesy of the author