When Lavender stepped into Weasley Wizard Wheezes and saw their extensive Wonder Witch line, she thought she had died and gone to heaven. That was before she actually tried the 'Patented Daydream Charm', then she knew.
The label proclaimed the wheeze to be a mixture of Amorentia and a mild befuddlement elixir best consumed, alone and at one's own risk. Lavender could handle that.
Unfortunately, due to the reasonable restriction for underage wizardry, she had to wait for her first night at Hogwarts-6th year to try it out. Once Pravati and Hermione had settled in for the night, Lavender, cast extensive privacy, locking and silencing charms on her bed curtains. It would not do at all for Hermione to hear Lavender's most private thoughts on her precious Ron.
Within a minute of taking the potion, Lavender, found herself sunbathing on the freshly mown grass of the school's Quidditch pitch. The sun was overly bright and she was very aware of the strong sent of her hair. She always used a lavender scented product, cliché maybe but she was not to blame for her parent's bizarre choice in names. After another few minutes, she became aware of the presence of someone or maybe she had heard his footfalls on the grass.
"Ron," her mind supplied.
Sitting up as seductively as she could manage, she saw not the gleaming red hair and tall lean form of her one and only Ron Weasley but…. Oliver Wood.
Lavender was about to speak the words that would end the potions effects when she noticed the way the sun kind of bounced off Wood's hair like an angels halo and then as her eye's travelled down his extremely fit body she forgot that she ever knew anyone named Ron.
Wood was oblivious to Lavender's inner thoughts and continued walking towards her; the look on his face spoke of the many wicked things he was planning on doing to her. Lavender decided she could most definitely live with that.
"Lavender," Wood breathed "there you are. I have been looking for you everywhere."
"I've been here waiting for you to find me."
That was the last thing either of them said before, Wood, lifted her from the ground and kissed her with more passion then she thought he was capable of for anything outside of the game of Quidditch. Her response was to moan loudly and kiss back as best she could.
The next thing she was aware of they were both naked astride his well-cushioned broomstick, suspended in the air before the middle goal hoop.
"I've been dreaming of this moment all of my life," he whispered as he kissed along her jaw and up to her ear.
Lavender could only murmur nonsense in response as she moved to sit in his lap. The contact made them both gasp and moan loudly. Oliver wasted no time as he bucked up and entered her in one movement. Lavender very nearly came on the spot, biting her lip, she tried to breathe and adjust to the pleasure that was sure to overcome her.
All too soon, they were panting, touching and kissing anywhere and everywhere they could reach, completely lost in each other.
"Come for me." Oliver demanded when his thrusts became erratic.
Lavender could do nothing but comply.
Afterwards, they drifted to the ground, Oliver wrapped them both in his Gryffindor captain's robe, and they drifted off to sleep.
Lavender woke the following morning feeling better than she had in ages and decided she would send, the twins, a thank you note and place a regular order for 'Patented Daydream Charm's. She would also be recommending them to all her friends as well.