If you suspect that you’ve almost caught your girlfriend or wife in the act with a romantic rival, examine her little toe.
Typically, in many women, the little toe may become red following sexual activity and can remain that way for up to twenty minutes.
Other signs to look for after intimacy include flushed cheeks, a red rash on her chest or neck, slightly puffy lips, and quick eye blinking.
And then there’s the most obvious indicator…the presence of a distinct “penis breath.”
by Susan Floyd