A friend explains why the spread-eagle position isn't right for his bottoming: "If I’m being fucked, I need a little sphincter control, whether you’re taking me from behind or missionary position, I need my legs so I can keep a little clenching action going on. Jose preferred my legs spread wide, his ultimate fantasy of control. I enjoy a good fuck but, I’m just not equipped like that."

Here are some other "spread eagle positions": http://www.keepstill.com/blog/spread-eagled.html