B-Day Booty Blunder

Elias Cash has prepared two gifts because his stepmom, Aderes Quin, and his girlfriend share the same birthday. But when Aderes is alone and unwraps what she thinks is her gift, she's shocked but turned on to see sexy panties and a note about anal sex! THIS is what her stepson wants to give her for her birthday??
When Elias later returns home, he's stunned to find Aderes posing on his bed wearing the panties. She has her gorgeous ass stuck up in the air and ready for him...
It turns out that it was all an innocent mistake and that the gifts got mixed up, but they're both horny from the situation that they decide to make this the best birthday ever, anyway!