He's so much taller than me!

So I'm only 5'3" and my boyfriend is 6' and damn it makes some things hard. We tried doggy style standing up and after a bit (it honestly might have only been like 20 sec) decided fuck it and took to the bed. We really want to have shower sex, but I'm worried that the height difference will make it difficult. Any advice for having sex with a man who's much taller than me?