Just get on the bed and do it lying down.
Don't be afraid to literally spit on their penis if things get dry.
Do not feel guilty that you make an older man desire you.
The sight of him screaming and squirming with delight as you suck away on his stiffened dick, oh what pleasure that would be! My parents divorced when I just turned 13.
They are using their daugters to live out their own teen fantasies.
After all, they could theoretically bite down on you—although we hope beyond hope that doesn't happen, ever.