It's interesting, and shows the artist put thought into this, that she's hooking her heels into his knee-guards and grabbing his belt for leverage to anchor herself. When she was putting metal knee protectors on him, I thought she was helping him prepare for battle like a squire, and then simply got naughty when she started licking his shaft immediately after attaching them.

I also noticed that this gallery had "female: high heels" tagged, but she wasn't wearing heels at the start. She put the knee protectors on him and put the heels on herself specifically so she could use them as impromptu stirrups and literally ride him. It could also be seen as her fanny-packing herself.

Base +20