My wife is several inches taller than me and LOVES to wear 4" high heels, which allow her to tower over me by over half a foot. With my short legs and small cock, I am also unable to enter her and penetrate her at all when she is in a bend over position wearing high heels. She sometimes likes to wear heels, bend over, and tease me to enter her this way. Of course I fail, but I am very turned on by it and often just sprinkle my tiny load on her snowy white thighs while she laughs in amusement.
My wife's current lover is a 6'4" tall man with a nine inch cock.......twice as long as mine. When she wears her high heels, he easily enters her and bottoms her out in the bend over position. It turns me on no end to watch it. He does this for us quite often now.
It all started when he first asked us to show him something my wife and I did with each other sexually. She was wearing sexy 4" high heeled black boots at the time, so we decided to do the bend over routine for him. He laughed uproariously at my helpless and futile attempt while she teased and taunted me. Then, he just walked over, moved me aside, effortlessly slipped his enormous cock under her, and penetrated her deeply. He had this big smirk on his face and said nothing at all to either one of us. My wife and I were both just amazed by what he had done. It was one of the most sexual moments I have ever experienced in this cuckold lifetyle, watching this stud fuck my tall, long legged wife while she was bent over in her high heeled boots.