Need tips for Sex while Standing

Hey guys! Recently my partner and I have been apart (she’s gone up north for a week to see her family). While she’s been away she sent me a video of a man animating a couple having sex in a standing position, she asked if we could try it. I obviously said “HELL YEAH”, but I struggle with keeping it up while standing. We have have sex in the shower before but usually stay in bed. I very often can’t keep it up while standing, if stimulation stops even for a few seconds it goes down.

Does anyone have any tips for keeping it up while standing?

Try the directed masturbation exercise in a standing position, and when the exercise is over, also masturbate mindfully in that position. If she’s coming back soon you might not have enough time to really condition yourself, but it could still be a good idea overall, so your body and mind get used to that position.
Also keep in mind that blood flow/pelvis floor tightness and other factors can be different when you’re standing, so it’s not “your fault” if it’s harder to maintain an erection in that position.