The Backdoor sex position provides unfettered access to that sweet spot and offers total indulgence in getting the job done.
To get into this sex position, the receiving partner gets onto their hands and knees. The penetrating partner then kneels behind them. The receiving partner then spreads their knees away from one another, bit by bit, until the penetrating partner's angle would be perfect for downward thrusts. This may require the receiving partner to come onto their forearms depending on the height of the two individuals.