Alien Invasion, 1954 — Melisse Aires

Debbie Sue and her small nephew Bobby survive the deadly alien invasion by hiding in the root cellar. Weeks later an alien captures her as she gathers food. Akarak, the alien from planet Vinshal, is large, tailed, spiked, and tentacled. He is learning English, promises no harm, and enjoys roast beef. He also is interested in having an affair with her. He says it will bring him good health.
Debbie Sue wonders if that is a line.

This a sci-fi romance novella with an R rated heat level, written for adult readers.
Warning: This sci-fi romance novella contains sexy times with an alien, a non-human alien hero, small dogs, children, and a heroine who wears skirts, bakes bread and mimeographs.