During these sessions, he taught the girls how to put on eye make-up the way he liked it - heavy on the shadow and mascara.
The evenings would continue with much tickling and kissing, which often went beyond friendly play-fighting.
'It scared the hell out of all of us.' Such behaviour had its roots in Presley's dysfunctional childhood, beginning the moment he was born in Memphis, Tennessee, on January 8, 1935, an identical twin whose brother Jesse died in the womb.
His mother Gladys, having lost one child, was smotheringly protective of the other.
Most famously there was his future wife, Priscilla Beaulieu, who was just 14 - ten years his junior - when they met in September 1959.
Although sexual from the start, their relationship was portrayed as a sweet and innocent triumph of love across the age divide.
'But I think if he had really pushed, I would have done it.' Although he continued to see the trio, Presley's appetite for such encounters was such that in 1957 he asked his agent Byron Raphael to begin procuring more girls for him.
They were thrilled to be invited backstage, but Marguerite became concerned when Presley took Jackie off to a sideroom.
A few minutes later she opened the door to find Presley teaching her daughter to 'kiss in a grown-up way'.
Realising the publicity value if the two got together, Presley's manager Colonel Tom Parker had arranged for them to meet earlier that day on the set of his movie Love Me Tender. As a disturbing new biography of the 'King' suggests, the 18-year-old siren was simply too old for Presley.
For Wood the attraction was instant, but less than 20 minutes after entering Presley's bedroom that night, she stormed out of the door. Shockingly, he preferred girls who were barely more than children.